Fragment生命周期---Android学习笔记

 

转载：http://m.blog.csdn.net/blog/hjj0212/8530273

 

官方文档中有详细的文字说明，不过最好还是实践下，熟悉过程。http://developer.android.com/guide/components/fragments.html

一、Activity的生命周期图：

二、Fragment生命周期图

三、对比图

四、测试代码：

package com.goso.testapp;import android.app.Activity;import android.app.ListFragment;import android.os.Bundle;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.ListView;/** * Demonstration of using ListFragment to show a list of items * from a canned array. */public class FragmentListArray extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        Log.e("HJJ", "Activity &&&& onCreate...");        // Create the list fragment and add it as our sole content.        if (getFragmentManager().findFragmentById(android.R.id.content) == null) {            ArrayListFragment list = new ArrayListFragment();            getFragmentManager().beginTransaction().add(android.R.id.content, list).commit();        }    }    @Override    protected void onStart() {    // TODO Auto-generated method stub    super.onStart();    Log.e("HJJ", "Activity &&&& onStart...");    }        @Override    protected void onResume() {    // TODO Auto-generated method stub    super.onResume();    Log.e("HJJ", "Activity &&&& onResume...");    }        @Override    protected void onStop() {    // TODO Auto-generated method stub    super.onStop();    Log.e("HJJ", "Activity &&&& onStop...");    }        @Override    protected void onPause() {    // TODO Auto-generated method stub    super.onPause();    Log.e("HJJ", "Activity &&&& onPause...");    }        @Override    protected void onDestroy() {    // TODO Auto-generated method stub    super.onDestroy();    Log.e("HJJ", "Activity &&&& onDestroy...");    }        public static class ArrayListFragment extends ListFragment {    @Override    public void onAttach(Activity activity) {    // TODO Auto-generated method stub    Log.e("HJJ", "ArrayListFragment **** onAttach...");    super.onAttach(activity);    }        @Override    public void onCreate(Bundle savedInstanceState) {    // TODO Auto-generated method stub    Log.e("HJJ", "ArrayListFragment **** onCreate...");    super.onCreate(savedInstanceState);    }        @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,    Bundle savedInstanceState) {    // TODO Auto-generated method stub    Log.e("HJJ", "ArrayListFragment **** onCreateView...");    return super.onCreateView(inflater, container, savedInstanceState);    }            @Override        public void onActivityCreated(Bundle savedInstanceState) {            super.onActivityCreated(savedInstanceState);            Log.e("HJJ", "ArrayListFragment **** onActivityCreated...");            String[] array = new String[]{"C++", "JAVA", "PYTHON"};            setListAdapter(new ArrayAdapter<String>(getActivity(),                    android.R.layout.simple_list_item_1, array));        }        @Override        public void onStart() {        // TODO Auto-generated method stub        Log.e("HJJ", "ArrayListFragment **** onStart...");        super.onStart();        }                @Override        public void onResume() {        Log.e("HJJ", "ArrayListFragment **** onResume...");        // TODO Auto-generated method stub        super.onResume();        }                @Override        public void onPause() {        Log.e("HJJ", "ArrayListFragment **** onPause...");        // TODO Auto-generated method stub        super.onPause();        }                @Override        public void onStop() {        Log.e("HJJ", "ArrayListFragment **** onStop...");        // TODO Auto-generated method stub        super.onStop();        }                @Override        public void onDestroyView() {        Log.e("HJJ", "ArrayListFragment **** onDestroyView...");        // TODO Auto-generated method stub        super.onDestroyView();        }                @Override        public void onDestroy() {        // TODO Auto-generated method stub        Log.e("HJJ", "ArrayListFragment **** onDestroy...");        super.onDestroy();        }                @Override        public void onDetach() {        Log.e("HJJ", "ArrayListFragment **** onDetach...");        // TODO Auto-generated method stub        super.onDetach();        }                @Override        public void onListItemClick(ListView l, View v, int position, long id) {            Log.i("FragmentList", "Item clicked: " + id);        }    }}

五、结果

onCreate过程01-22 15:30:28.091: E/HJJ(10315): Activity &&&& onCreate...01-22 15:30:28.091: E/HJJ(10315): ArrayListFragment **** onAttach...01-22 15:30:28.091: E/HJJ(10315): ArrayListFragment **** onCreate...01-22 15:30:28.115: E/HJJ(10315): ArrayListFragment **** onCreateView...01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onActivityCreated...onStart过程01-22 15:30:28.123: E/HJJ(10315): Activity &&&& onStart...01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onStart...onResume过程01-22 15:30:28.123: E/HJJ(10315): Activity &&&& onResume...01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onResume...onPause过程01-22 15:31:26.748: E/HJJ(10315): ArrayListFragment **** onPause...01-22 15:31:26.748: E/HJJ(10315): Activity &&&& onPause...onStop过程01-22 15:31:27.638: E/HJJ(10315): ArrayListFragment **** onStop...01-22 15:31:27.638: E/HJJ(10315): Activity &&&& onStop...onStart过程01-22 15:31:57.537: E/HJJ(10315): Activity &&&& onStart...01-22 15:31:57.537: E/HJJ(10315): ArrayListFragment **** onStart...onResume过程01-22 15:31:57.537: E/HJJ(10315): Activity &&&& onResume...01-22 15:31:57.537: E/HJJ(10315): ArrayListFragment **** onResume...onPause过程01-22 15:32:47.412: E/HJJ(10315): ArrayListFragment **** onPause...01-22 15:32:47.412: E/HJJ(10315): Activity &&&& onPause...onStop过程01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onStop...01-22 15:32:47.865: E/HJJ(10315): Activity &&&& onStop...onDestroy过程01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onDestroyView...01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onDestroy...01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onDetach...01-22 15:32:47.865: E/HJJ(10315): Activity &&&& onDestroy...